Improvement in brick-machines



i `2 Sheets--Sheet1.

l. D. BUSH. Brick-Machines. N0. 143,806. Patented Oct. 21,1873.

@@.mamagb UNITED 4'rA Es JOHN D. Busn, or'i'iLYroN, ALABAMA.

IMPROVEMENT IN BRICK-MACHINES.

Specification forming part of Letters Patent No. 143,806, dated October 21, 1873; application filed April 21, 1873.

To all whom fit may concern:

Be it known that I, JOHN D. BUSH, of Elyn ton, in the county of Jefferson and State of Alabama, have invented a new andlmproved Brick-Press; and I do hereby declare that .the following is a full, clear, and exact description thereof', reference being had to the accompanying drawings making part of this speciiication, in which- Figure 1, Plate 1, is a section taken vertically and longitudinally through the center of my improved press. Fig. 2, Flate l, is a horizontal section through the press taken in the plane w Fig. 1. Fig. 3, Plate 2, is a front view of the press with a portion of the table-shaft broken away. Fig. 4 is a view in detail and section, showing the stoproller in one of themoldcells.

Similar letters of reference indicate corresponding parts'in the several figures.

This inventionhas for its object the employment of a horizontal intermittently-rotating mold-table and an intermittently-ro tating receivingtable, with pressing and dischargingplungers, and a stop-roller for holding the moldtable stationary during the pressing and discharging operations, as will be hereinafter explained.

The followingdescription of my invention will enable others skilled in the art to understa-nd it'.

In the accompanying drawings, A represents the frame of the press, which is properly strengthened for sustaining the strain to which it is subjected. B represents a vertical shaft, to which a sweep,B1,is applied, by which manual or other power is applied for operating the.

press. On the upper end of the shaft B is a crown-wheel, B2, the teeth of which engage with a trundle-wheel, C, on a crank-shaft, D, and rotate this shaft. There are two cranks, a a', and a tappet, j, on the crank-shaft l). The'cranks are connected by rods b g to plungers b g/and give these plungers vertical movements through their horizontal guides c c. Beneath the plungers b g is a horizontal mold-table, G, through which are a number of vertical brick-molds, w, arranged equidistant from each other, and from the center of the table G. The upper edges of these molds or cells w are beveled outward for a purpose hereinafter explained. The table G is secured to a vertical shaft, E, which isV stepped below upon the foundation of the press, and guided above by a horizontal beam, H, shown in Fig. l.- On the upper end of the shaft E is a tappet-wheel, c, which has pins around it, corresponding in number to the ninnber of mold-cells m which pins are successively struck by the tappet j at each revolution of the crank-shaft l), thus moving the mold-cells beneath their plungers. Beneath the mold-'table is a curved table, J, and a circular table, T. The curved table J underlies three of the mold-cells, and forms the bottoms for the mold-cell beneath the pressing-plun ger b', and also the two cells succeeding it on the right-hand side of the shaft E. The pressed bricks are thus prevented by said table J from dropping out of their cells until they are moved over and discharged upon the receiving-table T. The plunger g is designed for discharging the bricks from their mold-cells upon the table T, from which latter the bricks are carried off to dry. The two plungers b and g' rise and descend simultaneously. Consequently, when a brick is pressed on one side of the mold-table a pressed brick will be expelled on the opposite side of the table. The receivingtable T is applied to a vertical shaft, K, and receives intermittent rotary movements from the shaft E by means of pulleys ff and a belt, This table moves the bricks from beneath the mold-table to a position from which they can be conveniently taken off by boys. During the pressing and discharging operations itis necessary to hold the table G stationary, for which purpose I employ a .stoproller, s,which is applied on the lower end of a vertical bar, It, as shown in Figs. 3 and 4. This bar is arranged so as to drop into the mold-cells as they are successively moved around and hold the table Gr while pressing and expelling the bricks. A spring-finger fu is applied to the bar It, and a lifting-toe, t, is applied to the discharging-plunger, as shown in Fig. 3. Vhen the plunger g' rises the toe t strikes the spring-fin ger c and lifts the bar R free from the table G, and when the plunger descends the bar R is allowed to drop into a mold-'cell and hold the table G.

Having described myinvention,Wl1a-t I claim as new, and desire to secure by Letters Pat-v ent, is-

1. The pressing-plunger b and dischargingplunger g', in combination with the intermittently-rotating mold-table G, stationary table or bed J, and receivingtable T, all arranged and operating substantially as described.

2. The double camshaft D, tappet j, and l friction-roller, s, and operated by means of the toe t on the plunger g', and the spring-finger t on the said bar R, substantially as described.

JOHN DANIEL BUSH.

Witnesses:

DAVID R. DUNLAP, WALTER W. KERR. 

